ST72521 STMICROELECTRONICS [STMicroelectronics], ST72521 Datasheet - Page 167
ST72521
Manufacturer Part Number
ST72521
Description
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST72521.pdf
(211 pages)
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12.4 SUPPLY CURRENT CHARACTERISTICS
The following current consumption specified for the ST7 functional operating modes over temperature
range does not take into account the clock source current consumption. To get the total device consump-
tion, the two current values must be added (except for HALT mode for which the clock is stopped).
12.4.1 RUN and SLOW Modes (Flash devices)
Figure 85. Typical I
Notes:
1. Data based on characterization results, tested in production at V
2. Measurements are done in the following conditions:
- Progam executed from RAM, CPU running with RAM access. The increase in consumption when executing from Flash
is 50%.
- All I/O pins in input mode with a static value at V
- All peripherals in reset state.
- CSS and LVD disabled.
- Clock input (OSC1) driven by external square wave.
- In SLOW and SLOW WAIT mode, f
Symbol
peripheral power consumption
To obtain the total current consumption of the device, add the clock source
I
DD
9
8
7
6
5
4
3
2
1
0
3.2
Supply current in RUN mode
(see
Supply current in SLOW mode
(see
Figure
Figure
3.6
8MHz
4MHz
2MHz
1MHz
85)
86)
DD
4
Parameter
in RUN vs. f
Vdd (V)
4.4
(Section
CPU
4.8
2)
is based on f
12.4.7).
2)
CPU
5.2
DD
5.5
or V
OSC
SS
divided by 32.
f
f
f
f
f
f
f
f
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
(no load)
Figure 86. Typical I
=2MHz, f
=4MHz, f
=8MHz, f
=16MHz, f
=2MHz, f
=4MHz, f
=8MHz, f
=16MHz, f
Conditions
1.20
1.00
0.80
0.60
0.40
0.20
0.00
DD
max. and f
CPU
CPU
CPU
CPU
CPU
CPU
3.2
CPU
CPU
(Section 12.5.3
=1MHz
=2MHz
=4MHz
=62.5kHz
=125kHz
=250kHz
=8MHz
=500kHz
3.6
CPU
500kHz
250kHz
125kHz
62.5kHz
max.
DD
4
in SLOW vs. f
Vdd (V)
and
4.4
Typ
1.3
2.0
3.6
7.1
0.6
0.7
0.8
1.1
Section
4.8
Max
15.0
3.0
5.0
8.0
2.7
3.0
3.6
4.0
12.5.4) and the
CPU
5.2
1)
ST72521
167/211
Unit
mA
mA
5.5
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